-- @testpoint: opengauss关键字write(非保留)，作为函数名，部分测试点合理报错

--关键字不带引号-成功
drop function if exists write;
create function write(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists write;
--关键字带双引号-成功
drop function if exists "write";
create function "write"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists "write";
--关键字带单引号-合理报错
drop function if exists 'write';
create function 'write'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `write`;
create function `write`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
